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MIL-P-83379 Revision A:1980
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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PLASTIC MATERIAL, CELLULAR POLYURETHANE, FOAM-IN-PLACE, RIGID (30 POUNDS PER CUBIC FOOT DENSITY)
15-11-1991
Requirements for polyurethane foam, rigid closed cell used in the helmet liner process.
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